Clamping appliance for use in the manufacture of shoes



March 16,1926. 1 1,576,951-

D. R. COOPER CLAMPING APRLIANCE FOR USE IN THE MANUFACTURE OF SHOES Filed March 14, 1925 ffilfehlol" .D. E Cooper fm's fifiOF/LW Patented Mar. 16, 1926.

UNITED srarss DAVID ROBERT COOPER, 0F ULTIMO, NEAR SYDNEY, NEXV SOUTH 'WALES, AUSTRALIA.

PATENT oFFicn.

GLAMPING- APPLIANCE FOR USE IN THE MANUFACTURE OF SHOES.

Application filed March 14, 1925. Serial No. 15,473.

To all whom it may concern:

Be it known that I, DAVID ROBERT CoorER, a subject of the King of Great Britain, residing at Ultimo, near Sydney, in the State of New South ales, Commonwealth of Australia, have invented new and useful Improvements in Clamping Appliances for Use in the Manufacture of Shoes, of which the following is a specification. I

This invention relates to an improved clamping appliance for use in the manufacture of shoes, and particularly ladies shoes having Louis heels or heels of similar type or design.

In the manufacture of shoes having heels of the character mentioned, it is customary to split the outer sole ofthe shoe and to atfix the lower split portion of said sole to the waist of the shoe and to the breast of the heel by means of a suitable adhesive. In many cases a metal reinforcement 1s secured tothe breast of the heel and to the shoe waist. To firmly hold the split portion'of the sole against the shoe waist and the heel breast until the adhesive employed has thoroughly set, it has been the custom to tightly bind pieces of fabric material.

around the waist of the shoe, but in practice, great difiiculty is experienced in efiecting a neat affixture by these means, due particularly to the curved configuration of the shoe waist and the heel breast.

The object of the present invention is to to be quick in action and efficient in its.

operation of firmly holding the split portion of the shoe sole against the breast of the heel and the curved waist of the shoe until the adhesive has become thoroughly set and hardened.

The invention is illustrated in the accompanying drawings, to which reference is now made and wherein Figure 1 is a view in side elevation showing the improved clamping appliance in closed position upon a shoe.

Figure 2 is a similar view showing the appliance in open position.

Figure 3 is a sectional view illustrating a detail modification included in the invention.

The improved clamping appliance comprises an arch-shaped and rigid member 5 formed preferably of T-section metal of approved gauge. This arch-shaped member is furnished at one of its extremities with a pressure foot 6,, which is designed to fit natively, it can be formed as a separate integer and can be attached to said member by means of a swivel joint 8 as is illustrated in Figure 3'.

Secured to the opposite end of the archshaped member 5 is' a resilient pad 9 of rubber or like soft and compressible material, Which has its inner face shaped to conform to the configuration and curvature of the rear surface of the shoe heel 10'.

Pivotally attached to the arch-shaped rigid member 5 at a point above said resilient pad 9 is a toggle lever 11 having an operating handle 12. F'astened' in holes 13 formed in said toggle lever 11 at apoint beneath its pivotal connecton to the archshaped member 5 are stout wire links 1 1. These links are pivotally connected at their outer ends to a metal holder 15, wherein is fitted a second resilient pad 16 shaped to conform to the configuration of the breast of the heel 10 and the adjacent curved waist portion of theshoe.

In the use of the improved clamping appliance in shoe manufacturing operations,

an adhesive is first applied to the lower split,

isthen arranged to bear against the rear surface of the shoe heel 10, when the toggle lever 11 is moved upwardly to cause the wire links 14 to bring the second resilient pad 16 to bear snugly and tightly against the breast of the heel and also against the curved waist of the shoe, thus firmly holding the split sole portion 17 in required positlon. By reason "of the pivotal connection between the pad holder 15 and the wire links 14, the pad 16 will readily adjust itself to the curvature of the shoe waist and the heel breast, thus ensuring the application of an even pressure upon the split portion of the. outer sole.

When the toggle lever 11 has been moved upwardly to the fullest extent, theholes 13 receiving the ends of the wire links let are above the point of pivotal connection of said lever-tothe arch-shaped member 5, and a toggle locking action is thus obtained,

which holds the resilient pads 9 and 16 and the pressure foot 6 in locked position against movement.

When the adhesive employed for the affixture of the split sole portion 17 has thoroughly set, the resilient pads 9 and 16 of the appliance are released by merely moving the toggle lever 11 downwardly when the said resilient pads and the pres sure foot are released from the shoe parts, as is seen in Figure 2, thus allowing the clamping appliance to be readily and conveniently removed from one shoe and applied to another shoe for the purpose stated.

IVhatI do claim is 1. In a shoe clamping appliance for the purpose specified, a member arranged with a part to engage inside of and arranged to press upon the waist portion of the shoe and another part to be positioned adjacent to the outer side of the shoe heel, a pad attached to said latter part adapted to bear against the rear surface of the shoe heel, a second pad arranged to bear against the heel breast and shoe waist, and means for adjustably connecting said second pad to said member and operative to position the second pad relative to the heel breastand shoe waist and simultaneously exert inward pressure on both of said pads.

2. In a shoe clamping appliance for the purpose specified, an arch shaped member having one end adapted to fit inside the shoe and press upon its waist portion and the other end to be positioned at the rear to the arch shaped member and operative for exerting pressure in opposite directions 2 we r 1,576,951

on said pads tofirmly engage the pads with forceto firmly press the one end against the interior of the shoe at the waist portion. '3. In a shoe clamping appliance for the purpose specified, an arch-shaped member having one end adapted to fit inside the shoe and bear upon the waist portion and the other end to be positioned at the rear of the shoe heel, a resilient pad secured to said latter end of said arch-shaped member and adapted to bear against the rear of the shoe heel, a lever pivoted to said arolrshaped member, a second resilient pad adapted to bear against: the shoe waist and the heel breast, and a link connection between said second pad and said lever.

1. A shoe clamping appliance as clain'ied in claim 3, wherein a pressure foot is pro vided at the end of the arch-shaped member engaging in the shoe to bear against the inside waist portion of the shoe.

5. A shoe clamping appliance as claimed in claim wherein the. second resilient pad is mounted'in a holder pivotally attached to the link conneetioi'i whereby said pad is adapted to adjust itself to the curvature of the heel breast and shoe waist.

6. In a shoe cla'n'iping appliance for the purpose specified, an arch shaped rigid member constructed and arranged whereby as one end is engaged with a waist portion in a shoe the other end is adapted to be positioned adjacent the rear of the shoe heel, a pressure foot at the one end of said mem ber adapted to bear against the interior of the shoe at its waist portion, a resilient pad at the opposite end of said curved member arranged to bear against the back of the shoe heel, a lever pivoted to said arch shaped member, a second resilient pad, a holder in which said second pad is fitted and adapted to bear against the exterior of the shoe waist and against the heel breast, and links pivotally connecting said holder with said lever.

In testimony whereof I affix my signature.

DAVID ROBERT COOPER. 

